Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

Lat: 44.523°NLon: 114.21611°WElev: 5026.0ft.

Clear

73°F

23°C

Humidity 29%
Wind Speed NE 3 MPH
Barometer 30.19 in (1022.35 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 19 Aug 12:00 PM MDT
Extended Forecast for

25 Miles NNE Mackay ID

  • This Afternoon

    This Afternoon: Sunny, with a high near 79. Northwest wind 5 to 8 mph.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 54. Northwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 54 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 84. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 84 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 57. West wind around 6 mph becoming calm  in the evening.

    Low: 57 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 84. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before midnight, then a slight chance of rain after midnight.  Mostly cloudy, with a low around 57. Chance of precipitation is 50%.

    Low: 57 °F

    Chance
    Showers then
    Slight Chance
    Rain

  • Saturday

    Saturday: A chance of rain, then showers likely and possibly a thunderstorm after noon.  Mostly cloudy, with a high near 77. Chance of precipitation is 70%.

    High: 77 °F

    Chance Rain
    then Showers
    Likely

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before midnight.  Partly cloudy, with a low around 53.

    Low: 53 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 79. Northwest wind 5 to 8 mph.
Tonight
Mostly clear, with a low around 54. Northwest wind 5 to 8 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 84. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 57. West wind around 6 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 84. Calm wind becoming south 5 to 7 mph in the afternoon.
Friday Night
A chance of showers and thunderstorms before midnight, then a slight chance of rain after midnight. Mostly cloudy, with a low around 57. Chance of precipitation is 50%.
Saturday
A chance of rain, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 77. Chance of precipitation is 70%.
Saturday Night
A 20 percent chance of rain before midnight. Partly cloudy, with a low around 53.
Sunday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 51.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 75.
Monday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 52.
Tuesday
Rain likely and possibly a thunderstorm. Partly sunny, with a high near 73. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
25 Miles NNE Mackay ID
 44.24°N 113.41°W (Elev. 6424 ft)
11:31 am MDT Aug 19, 2026
12pm MDT Aug 19, 2026-6pm MDT Aug 25, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database